221519280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4139}}^1$

素因数の和:4378

約数の個数: 80

約数和(自身を含む): 689955840

約数和(自身を除く): 468436560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 223, 240, 446, 669, 892, 1115, 1338, 1784, 2230, 2676, 3345, 3568, 4139, 4460, 5352, 6690, 8278, 8920, 10704, 12417, 13380, 16556, 17840, 20695, 24834, 26760, 33112, 41390, 49668, 53520, 62085, 66224, 82780, 99336, 124170, 165560, 198672, 248340, 331120, 496680, 922997, 993360, 1845994, 2768991, 3691988, 4614985, 5537982, 7383976, 9229970, 11075964, 13844955, 14767952, 18459940, 22151928, 27689910, 36919880, 44303856, 55379820, 73839760, 110759640, 221519280]

約数ペア:

[(1, 221519280), (2, 110759640), (3, 73839760), (4, 55379820), (5, 44303856), (6, 36919880), (8, 27689910), (10, 22151928), (12, 18459940), (15, 14767952), (16, 13844955), (20, 11075964), (24, 9229970), (30, 7383976), (40, 5537982), (48, 4614985), (60, 3691988), (80, 2768991), (120, 1845994), (223, 993360), (240, 922997), (446, 496680), (669, 331120), (892, 248340), (1115, 198672), (1338, 165560), (1784, 124170), (2230, 99336), (2676, 82780), (3345, 66224), (3568, 62085), (4139, 53520), (4460, 49668), (5352, 41390), (6690, 33112), (8278, 26760), (8920, 24834), (10704, 20695), (12417, 17840), (13380, 16556)]